G02F 1/23

For the control of the colour

Official title: for the control of the colour (G02F1/03 - G02F1/21 take precedence)

G02F1/23 (For the control of the colour) appears on 137 US grants and 129 published applications in this corpus.

Search patents in G02F
Granted patents
137
Published applications
129
Assignees
94
Inventors
312
Latest grant
23 Jun 2026

Filings by year

G02F 1/23: granted patents and published applications per publication year
YearGranted patentsPublished applications
197910
198030
198110
198210
198300
198400
198500
198610
198700
198810
198910
199010
199110
199210
199300
199400
199500
199600
199710
199830
199950
200020
200130
200221
200345
200421
200512
200620
200713
200813
200925
201011
201125
201258
2013410
201448
201595
201686
2017810
2018714
2019127
202098
202178
202276
202343
202446
202521
202633

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

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